This dataset contains benthic and pelagic invertebrate stable carbon and nitrogen isotope data collected in the Chukchi Sea, U.S. Arctic during the 7 August 2017 - 22 August 2017 Arctic Marine Biodiversity Observing Network (AMBON) research cruise aboard the vessel Norseman II. The dataset contains a comma separated values (csv) files exported from Microsoft Excel. These data were generated from samples collected with trawls, grabs, and plankton nets during the research cruise. The data in the file named AMBON2017_Stable Isotopes_Database_final.csv describe the carbon and nitrogen stable isotope values of invertebrate samples with and without various chemical treatments to eliminate carbonates and lipids. Full location and taxonomic information is given for each sample.

This dataset contains benthic macroinfaunal population level from sediment samples collected at each station for the Arctic Marine Biodiversity Observing Network (AMBON) cruise in 2015 on the Norseman II, identified by station number (#), Station name (Stn. Name), Date (YYYYMMDD), latitude (°N), longitude (°W), and station depth (m). The following macroinfaunal parameters were determined: abundance, wet weight biomass (gww/m2), dry weight biomass (gC/m2), and taxon type. The Pacific sector of the Arctic Ocean is experiencing major reductions in seasonal sea ice extent and increases in sea surface temperatures. One of the key uncertainties in this region is how the marine ecosystem will respond to seasonal shifts in the timing of spring sea ice retreat and/or delays in fall sea ice formation. Variations in upper ocean water hydrography, planktonic production, pelagic-benthic coupling and sediment carbon cycling are all influenced by sea ice and temperature change.

This dataset contains summary measurements of surface sediment collected at fixed stations in the Chukchi Sea during the 12 August - 3 September 2015 and 6 August - 22 August 2017 Arctic Marine Biodiversity Observing Network (AMBON) research cruises. A Van Veen grab was used for collection of sediment samples at AMBON sampling stations. Sediment grain size was then determined in the laboratory after removal of organics and iron oxides. This dataset contains two comma-separated values (csv) files containing summary measurements of surface sediment collected at each station for AMB15 and AMB17 by Station Number, Station name, Date (YYYYMMDD), latitude (dec deg N), longitude (dec deg E), and Station Depth (m). The following parameters are listed in this data file for surface sediment values: grain size percentage (≤0 phi, 1 phi, 2 phi, 3 phi, 4 phi, sand 1-4 phi, ≥5 phi, and modal phi size), percent total organic carbon (TOC), percent total organic nitrogen (TON), C/N ratio, del-13 carbon (per mil), del-15 nitrogen (per mil), surface sediment chlorophyll (chl a; mg/m2), and stable isotope values of 13C and 15N (per mil vs VPDB and air, respectively).

This dataset contains benthic epifauna biomass and abundance data collected in the Chukchi Sea, U.S. Arctic during the 9 August - 3 September 2015 Arctic Marine Biodiversity Observing Network (AMBON) research cruise aboard the vessel Norseman II. The dataset contains two comma separated values (csv) files exported from Microsoft Excel. These data were generated from epifauna samples conducted using beam trawls during the research cruise. The data in the file named AMBON2015_epifauna_abundance_DWC.csv describes abundance per taxon of epibenthic invertebrates. The data in the file named AMBON2015_epifauna_biomass_DWC.csv describes biomass per taxon of epibenthic invertebrates. This dataset was transformed into a table structure using Darwin Core term names as column names.

This dataset includes marine biodiversity data collected in support of the Arctic Marine Biodiversity Observing Network (AMBON) project from 2015 to 2020. These data include fish, seabird and marine mammal survey data, biomass and abundance data, surface sediments data, as well as physical oceanographic and meteorological data, and other related data. These data were collected on AMBON research cruises and in other related efforts by various partner organizations.

This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Paleoceanography. The data include parameters of paleoceanography with a geographic location of Gulf Of Alaska, North Pacific Ocean. The time period coverage is from 17400 to -54 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.

This dataset contains zooplankton species biomass and abundance data collected in the Chukchi Sea during the 11 August through 3 September, 2015. Arctic Marine Biodiversity Observing Network (AMBON) research cruise on the vessel Norseman II. This dataset contains three comma separate values (csv) files. The data were collected from zooplankton samples caught with traditional 150µm plankton nets and taxonomically identified. Each data file include the location, date, time, depth, and identification of zooplankton taxa collected during the 2015 AMBON cruise. The data in the file named AMBON2015_Zooplankton_Abundance_150_DC.csv and AMBON2015_505_Zooplankton_Abundance_DWC.csv consists of abundance per taxon of zooplankton. The data in the file named AMBON2015_Zooplankton_Biomass_150_DC.csv and AMBON2015_505_Zooplankton_Biomass_DWC.csv consists of biomass per taxon of zooplankton. These data files are presented in a table structure using Darwin Core term names as column names. This dataset also contains the file AMBON_station_masterlist.csv, describing stations sampled during AMBON cruises.

This record contains a comprehensive synthesis of previously published highly branched isoprenoid (HBI) results, providing a quantitative spatial and temporal assessment of carbon partitioning within the Arctic marine ecosystem and validating estimates of sea-ice particulate organic carbon (iPOC) values as quantitative predictors of ice algal carbon in Arctic food webs. This publication was a collaborative effort with the following contributors: David Yurkowski (Fisheries and Oceans Canada), Lisa Loseto (Fisheries and Oceans Canada), Steve Ferguson (Fisheries and Oceans Canada), Bruno Rosenberg (Fisheries and Oceans Canada), C.W. Koch (Natural History Museum, London, UK; University of Maryland Center for Environmental Science, Maryland, US); T.A. Brown (Scottish Association for Marine Science, Oban, Scotland); R. Amiraux (Centre for Earth Observation Science, University of Manitoba, Canada); C. Ruiz-Gonzalez (Scottish Association for Marine Science, Oban, Scotland); M. Maccorquodale (Scottish Association for Marine Science, Oban, Scotland); G. Yunda-Guarin (Québec-Océan and Takuvik, Biology Department, Laval University, Canada); D. Kohlbach (Norwegian Polar Institute, Fram Centre, Tromsø, Norway); N.E. Hussey (Integrative Biology, University of Windsor, Ontario, Canada).

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, water temperature, salinity, nutrients and other parameters collected from profile and discrete sample observations from R/V Helmer Hansen time series cruises in the Arctic Ocean in the eastern Fram Strait along 79N from 2014-01-10 to 2014-08-25.

This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Paleoceanography. The data include parameters of paleoceanography with a geographic location of North Atlantic Ocean. The time period coverage is from 2179 to -63 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.